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larisa86 [58]
3 years ago
12

a high school principal wants to test the overall mood in his school. he stops the first fifteen students who come into the offi

ce one morning and asks them to rate their high school experience on a scale of 1 (worst) to 10 (best). the average response is 3.2, and the principal concluded that his school's mood is poor. the principal's conclusion
Mathematics
1 answer:
torisob [31]3 years ago
7 0
Can you explain.... Is there a question oooorrr no
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Directions: Solve for x, then find each angle measure
kirill [66]

Answer:

Step-by-step explanation:

the sum of the interior angles of a triangle is 180°

so

9x + 3 + 11x - 21 + 5x - 2 = 180

25x = 180 - 3 + 21 + 2

25x = 200

x = 200 : 25

x = 8

----------------

E = 9 * 8 + 3 = 75°

D = 5 * 8 -2 = 38°

F = 11 * 8 - 21 = 67

-------------------------

check

75 + 37 + 67 = 180°

8 0
3 years ago
Information was collected on those who attended the opening of a new movie. The analysis found that 56 percent of the moviegoers
kherson [118]

Answer: 0.65

Step-by-step explanation:

Let A denote that moviegoers were female and B denotes that moviegoers were under age 25.

As per given we have,

P(A)=0.56     P(B)=0.26     P(A∩B)=0.17

Using formula ,

P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\ P(A\cup B)=0.56+0.26-0.17=0.65

Hence, the probability that a moviegoer is either female or under age 25 = 0.65

6 0
3 years ago
Explain how to solve 3x - 1 = 1 - 3x ​
astraxan [27]

Step 1: Simplify both sides of the equation.

3

x

−

1

=

1

−

3

x

3

x

+

−

1

=

1

+

−

3

x

3

x

−

1

=

−

3

x

+

1

Step 2: Add 3x to both sides.

3

x

−

1

+

3

x

=

−

3

x

+

1

+

3

x

6

x

−

1

=

1

Step 3: Add 1 to both sides.

6

x

−

1

+

1

=

1

+

1

6

x

=

2

Step 4: Divide both sides by 6.

6

x

6

=

2

6

x

=

1

3

7 0
3 years ago
Read 2 more answers
To find the length of a line segment given endpoints is to use ______
ivann1987 [24]

Answer:

To calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. * i didnt know what to put so i put this*

8 0
3 years ago
The placebo effect is an example of a(n) experimenter bias. participant bias. random assignment bias. random selection bias.
densk [106]

Answer:

participant bias

Step-by-step explanation:

Participant bias is sometimes called as subject bias. it is referred to as the tendency of a subject that forces them to act in an experiment. it is held because that they think researchers is looking up to them to act. it occurs only when the subject has detail knowledge about the study or project.

Participant bias is a subject initiative to know about the inner thought of the researcher so the subject acts according to what the researcher wants to hear.

4 0
3 years ago
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